src/Pure/Isar/local_syntax.ML

--- a/src/Pure/Isar/local_syntax.ML	Wed Apr 06 13:08:44 2011 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,124 +0,0 @@
-(*  Title:      Pure/Isar/local_syntax.ML
-    Author:     Makarius
-
-Local syntax depending on theory syntax.
-*)
-
-signature LOCAL_SYNTAX =
-sig
-  type T
-  val syn_of: T -> Syntax.syntax
-  val idents_of: T -> {structs: string list, fixes: string list}
-  val init: theory -> T
-  val rebuild: theory -> T -> T
-  datatype kind = Type | Const | Fixed
-  val add_syntax: theory -> (kind * (string * typ * mixfix)) list -> T -> T
-  val set_mode: Syntax.mode -> T -> T
-  val restore_mode: T -> T -> T
-  val update_modesyntax: theory -> bool -> Syntax.mode ->
-    (kind * (string * typ * mixfix)) list -> T -> T
-end;
-
-structure Local_Syntax: LOCAL_SYNTAX =
-struct
-
-(* datatype T *)
-
-type local_mixfix =
-  (string * bool) *  (*name, fixed?*)
-  ((bool * bool * Syntax.mode) * (string * typ * mixfix));  (*type?, add?, mode, declaration*)
-
-datatype T = Syntax of
- {thy_syntax: Syntax.syntax,
-  local_syntax: Syntax.syntax,
-  mode: Syntax.mode,
-  mixfixes: local_mixfix list,
-  idents: string list * string list};
-
-fun make_syntax (thy_syntax, local_syntax, mode, mixfixes, idents) =
-  Syntax {thy_syntax = thy_syntax, local_syntax = local_syntax,
-    mode = mode, mixfixes = mixfixes, idents = idents};
-
-fun map_syntax f (Syntax {thy_syntax, local_syntax, mode, mixfixes, idents}) =
-  make_syntax (f (thy_syntax, local_syntax, mode, mixfixes, idents));
-
-fun is_consistent thy (Syntax {thy_syntax, ...}) =
-  Syntax.eq_syntax (Sign.syn_of thy, thy_syntax);
-
-fun syn_of (Syntax {local_syntax, ...}) = local_syntax;
-fun idents_of (Syntax {idents = (structs, fixes), ...}) = {structs = structs, fixes = fixes};
-
-
-(* build syntax *)
-
-fun build_syntax thy mode mixfixes (idents as (structs, _)) =
-  let
-    val thy_syntax = Sign.syn_of thy;
-    fun update_gram ((true, add, m), decls) = Syntax.update_type_gram add m decls
-      | update_gram ((false, add, m), decls) =
-          Syntax.update_const_gram add (Sign.is_logtype thy) m decls;
-
-    val (atrs, trs, trs', atrs') = Syntax.struct_trfuns structs;
-    val local_syntax = thy_syntax
-      |> Syntax.update_trfuns
-          (map Syntax.mk_trfun atrs, map Syntax.mk_trfun trs,
-           map Syntax.mk_trfun trs', map Syntax.mk_trfun atrs')
-      |> fold update_gram (AList.coalesce (op =) (rev (map snd mixfixes)));
-  in make_syntax (thy_syntax, local_syntax, mode, mixfixes, idents) end;
-
-fun init thy = build_syntax thy Syntax.mode_default [] ([], []);
-
-fun rebuild thy (syntax as Syntax {mode, mixfixes, idents, ...}) =
-  if is_consistent thy syntax then syntax
-  else build_syntax thy mode mixfixes idents;
-
-
-(* mixfix declarations *)
-
-datatype kind = Type | Const | Fixed;
-
-local
-
-fun prep_mixfix _ _ (_, (_, _, Structure)) = NONE
-  | prep_mixfix add mode (Type, decl as (x, _, _)) = SOME ((x, false), ((true, add, mode), decl))
-  | prep_mixfix add mode (Const, decl as (x, _, _)) = SOME ((x, false), ((false, add, mode), decl))
-  | prep_mixfix add mode (Fixed, (x, T, mx)) =
-      SOME ((x, true), ((false, add, mode), (Syntax.mark_fixed x, T, mx)));
-
-fun prep_struct (Fixed, (c, _, Structure)) = SOME c
-  | prep_struct (_, (c, _, Structure)) = error ("Bad mixfix declaration for " ^ quote c)
-  | prep_struct _ = NONE;
-
-in
-
-fun update_syntax add thy raw_decls
-    (syntax as (Syntax {mode, mixfixes, idents = (structs, _), ...})) =
-  (case filter_out (fn (_, (_, _, mx)) => mx = NoSyn) raw_decls of
-    [] => syntax
-  | decls =>
-      let
-        val new_mixfixes = map_filter (prep_mixfix add mode) decls;
-        val new_structs = map_filter prep_struct decls;
-        val mixfixes' = rev new_mixfixes @ mixfixes;
-        val structs' =
-          if add then structs @ new_structs
-          else subtract (op =) new_structs structs;
-        val fixes' = fold (fn ((x, true), _) => cons x | _ => I) mixfixes' [];
-      in build_syntax thy mode mixfixes' (structs', fixes') end);
-
-val add_syntax = update_syntax true;
-
-end;
-
-
-(* syntax mode *)
-
-fun set_mode mode = map_syntax (fn (thy_syntax, local_syntax, _, mixfixes, idents) =>
-  (thy_syntax, local_syntax, mode, mixfixes, idents));
-
-fun restore_mode (Syntax {mode, ...}) = set_mode mode;
-
-fun update_modesyntax thy add mode args syntax =
-  syntax |> set_mode mode |> update_syntax add thy args |> restore_mode syntax;
-
-end;